428 



MESSRS. H. AND A. ADAMS ON NEW SHELLS, [NoV. 10, 



0>y 



13. Pecten tasmanicus, Ad. & Ang. (PI. XXXVII. fig. 21.) 



P. testa trigonali-orhiculari, suhcequivalva ; valva dextra convexiore, 

 auribus aqualibus ; valva sinistra roseo-violascente tincta, costis 8 

 radiantihus validis plus minusve longitudinaliter sulcatis et cos- 

 tellis parvioribus intermediis incequalibus instructa, superficie tota 

 minute granulata ; valva dextra pallida, radiatim costata, costis in 

 7-8 fasciculis dispositis, interstitiis costis minoribus instructis. 



Alt. 2 inches 2 lines, lat. 2 inches 1 line. 



Hab. Oyster Bay, Tasmania {Coll. Angas.). 



A fine species, with the ribs of the right valve disposed in seven 

 or eight bundles, and with the entire surface of the shell shagreened 

 as in P. bifrons. 



EXPLANATION OF PLATE XXXVIL 



Fig. 1. Fusus tasmaniensis, p. 421. 



2. Adamsia adelaidtB, p. 421. 



3. Olivella pardalis, p. 422. 



4. Cithara angela, p. 419. 



5. C. compta, p. 419. 



6. C. hella, p. 419. 



7. Mangelia pieta, p. 419. 



8. M. insculpta, p. 420. 



9. 10. Fossarina patula, p. 424, 

 11, 12. Adeorbis anyasi, p. 424. 

 13. Euryta trilineata, p. 418. 



Fig. 14. Euryta pulchella, p. 418. 



15. Crassatella aurora, p. 426. 



16. C. banksii, p. 427. 



17. Naranio rubiginosa, p. 425. 



18. Sunetta alicice, p. 425. 



19. Ducina concentrica, p. 426. 



20. L. cumingi, p. 426. 



21 a, b. Pecten tasmanicus, p. 428. 



22. Purpura flindersi, p. 421. 



23. Olivella leucozona, p. 422. 



12. Descriptions of New Species of Shells, chiefly from 



THE CUMINGIAN COLLECTION. By HeNRY AND ArTHUR 



Adams. 



1. RiMELLA SPECIOSA, H. & A. Ad. 



R. testa ovato-fusi/ormi, /ulvicante ; anfractibus convexis, supremis 

 utrinque varicosis, longitudinaliter concinne plicatis, plicis con- 

 fertis regularibus, interstitiis transversim sulcatis ; apertura an- 

 gusta, rostro brevi truncato, postice canali usque ad anfractum 

 penultimutn extendente et deorsum inclinato ; labio leevi, tenui; 

 labro margine reflexo, intus creno-plicato, antice simplici. 

 Long. 12 lines, lat. 5 lines. 



Hab. 1 {Coll. Tyler.). 



An elegant reticulated shell, more lanceolate than R. cancellata, 

 not ending anteriorly in a recurved beak, with the varix of the outer 

 lip plain externally, and with the posterior canal of the aperture 

 faintly developed, and only extending as far as the penultimate whorl. 



2. RiMELLA TYLERI, H. & A. Ad. 



R. testa ovato-fusiformi, lutescente, fasciis transversis quatuor rufo- 



fuscis ornata ; anfractibus convexis, longitudinaliter plicatis ; 



plicis validis subdistantibus, interstitiis transversim valde sulcatis; 



apertura angusta, rostro acuto subproducto, postice canali usque ad 



anfractum tertium extendente et deorsum valde curvato ; labio leevi. 



